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Proceedings Paper

Spatial Resolution Improvement Of TM Thermal Band Data
Author(s): Victor T. Tom; Mark J. Carlotto; Daniel K. Scholten
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Paper Abstract

A new image enhancement technique has been applied to enhance LANDSAT-4 Thematic Mapper (TM) thermal infrared (IR) imagery, and has improved its effective ground resolution from 120 meters to 30 meters. The technique is based on an adaptive multi-band least mean squares (LMS) method for computing an optimal image estimate from reference images, and a frequency domain replacement step. The approach relies on the assumption that at a sufficiently small resolution, registered TM imagery data is locally correlated across the bands. Using the local correlation property, visible and IR reference bands are used to predict the thermal IR image data. The prediction estimate is then used to augment the spatial high frequency information in the original thermal data. Preliminary experiments enhancing 120 meter IR imagery (simulated degradation) to 30 meter resolution show that the rms error can be reduced by 80% in high edge detail regions.

Paper Details

Date Published: 4 December 1984
PDF: 7 pages
Proc. SPIE 0504, Applications of Digital Image Processing VII, (4 December 1984); doi: 10.1117/12.944886
Show Author Affiliations
Victor T. Tom, The Analytic Sciences Corporation (United States)
Mark J. Carlotto, The Analytic Sciences Corporation (United States)
Daniel K. Scholten, The Analytic Sciences Corporation (United States)


Published in SPIE Proceedings Vol. 0504:
Applications of Digital Image Processing VII
Andrew G. Tescher, Editor(s)

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